Crusher for reconditioning sacked material



Aug. 28, 1934. R. 1 HOSMER 1,971,485

CRUSHER FOR RECONDITIONING SACKED MATERIAL Filed Nov. 28, 1930 2Sheets-Sheet l m NQ E m@ al1- l BH IW 5...?. :Ruh: 1 WiI.|.iliIiIiI.iI-a Llei.: a .l .Lz llmlllllllnl Aug. 28, 1934. R. l.,HosMr-:R

CRUSHER FOR RECONDITIONING SACKED MATERIAL Filed Nov. 28, 1930 2Sheets-Sheet 2 mx mg Patented Aug. 28, 1934 caosmzn ron neconnmomcsAcxEn mreamr.

Bay L. Henner, St. Louis, Mo., assigner of onethirdtnllll'l'yV.Lindandone-third to Thomas W. Watson. both of Cairo, lll.

Application November 28, 1930, Serial No. 498,682

4 Claims. (Cl. 8381) My invention relates to devices for crushing orre-pulverizing sacked material such as sugar or the like whichhas`partially hardened or become lumpy. When sacked sugar, or like ma- 5terial has been placed in a damp atmosphere or has been stored for aconsiderable length of time, it partially hardens becoming lumpy anditis necessary to thoroughly break up the lumps in order to reconditionit for commercial use. The present method of reconditioning suchmaterial while in sacks is to manually drop the sack several times on ahard base and sometimes further pound the same with hammers or the likewhich is a slow operation, injures the sack, and is necessarilyunsatisfactory, inefficient and uneconomical; and the principal objectof the present invention is to devise a simple and emcient device whichwill thoroughly recondition sacked material without harming the sacks.

My invention consists principally in a crusher device comprising aframework, a pair of oppositely disposed vertical crusher rolls ofcylindrical shape mounted therein, and two pairs of oppositely disposedhorizontal crusher rolls mounted in said framework, one of said pairs ofhorizontal rolls being of cylindrical shape and the other oflongitudinally concave shape. My

' invention also consists in the parts, combinations and arrangements ofparts hereinafter de- 30 scribed and claimed.

In the accompanying drawings which form part of this specification andwherein like reference numerals refer to like parts wherever they occur,

Fig. 1 is a plan view of a crushing device embodying my invention;

Fig. 2 is a right hand side view of the device shown in Fig. 1; and

Fig. 3 is a left hand side view of said device.

As illustrated in the drawings, my device in general comprises aframework v1, a pair of oppositely disposed vertical cylindrical rolls 2mounted in the forepart of said framework, a pair of oppositely disposedhorizontal cylindrical rolls 3 mounted in the middle part of saidframework, and a pair of oppositely disposed horizontal concave rolls 4mounted in the rear part of said framework. A sack of sugar or the liketo be crushed and reconditioned by my device, is delivered by suitablemeans to the vertical rolls 2 5U in the forepart of the framework, andthe middle horizontal rolls 3 are located and-adapted to receive thesack as it passes from between the vertical rolls, whereas the rearconcave rolls 4 are adapted to receive said sack as it emerges `trombetween the middle horizontal rolls and preferably, the first two pairsf rolls are corrugated to insure proper feeding action and help kneadthe sack. It is obvious, that by using the above combination of-rolls,all portions of the sack of material are thoroughly engaged and crushed,as the vertical cylindrical rolls 2 crush the side portionsof said sack,the middle horizontal cylindrical rolls 3 crush the top and bottomportions of said sack and the concave rolls crush the edge portions ofsaid sack left untouched by the other rolls.

While any suitable type of framework may be used in which to mount thevarious rolls, I have shown a rectangular-shaped framework 1 comprisingbottom longitudinal side members 5 and 70 transverse end members 6supporting upright members '7 at each corner, said upright memberssupporting top longitudinal side members 8 and transverse end members 9.In order to strengthen the framework 1, and to provide bases 7 5 formounting various portions of the roll driving means thereon, twosuitable upright members 10 are secured to the top and bottomlongitudinal side members intermediate the ends of the frame, andintermediate transverse top and 80 bottom members 11 are secured to theends of said upright members 10. Preferably the framework as a whole ismounted on four suitable ball bearing swivel truck castors 12, each ofwhich is mounted on the bottom longitudinal side 35. members 5 near anend thereof, so that the device as a whole is portable and can be movedto any desired location in the warehouse or building in which it isbeing used.

Each of the vertical rolls 2 is mounted in a W0 yoke-shaped bracket 13comprising top and bottom branches 14 extending integrally from a largecylindrical sleeve 15 which is mounted for rotation on a vertical shaft16 and said shaft 16 is mounted in vertical bearings 17 extending from95 the forward corner upright member 7. Each vertical roll 2 is rigidlymounted on a shaft 18 which is mounted in bearings 19 provided inenlarged circular end portions of the branches 14 of the yoke-shapedbracket. Preferably, in or- M0 der to insure smooth operation of therolls, suitable anti-friction bearings 20 are interposed between thebottom of the vertical roll hubs 2 and the circular end portions of thebottom branches 14; and also suitable antifriction bearings 2l are 105interposed between the bottom of the rotatable cylindrical sleeves 15and the bottom bearings 17.

It is obvious from the foregoing description, that since the branches 14of the yoke-shaped brackets 13 are free to rotate about their supportingverllo tical shafts 16, the vertical rolls 2 are capable of swinginghorizontally, and hence the distance between the two vertical rolls maybe varied. A spring 22 is secured to each of the top bracket branches14, which spring 22 yieldably resists separation of the rolls 2 but willallow them to separate in case an extremely hardened sack passes betweensaid rolls.

Each pair of horizontally disposed rolls are mounted in a similarmanner, each of the bottom rolls 3 and 4 being rigidly mounted ontransverse shafts 23 supported in bearings 24 extending from the bottomlongitudinal side members 5. Each of the top horizontal rolls is rigidlymounted on top transverse shafts 25, the ends of which shafts arerotatably mounted the free ends of arms 26 extending from auxiliary toptransverse shafts 27 which are supported near each end in brackets 28extending downwardly from the top longitudinal side members 8. Said arms26 are rotatably mounted on the shafts 27 and hence the top rolls 3 and4 are capable of swinging toward or away from their cooperating bottomrolls and in order to locate and hold the top rolls directly above thelower rolls, diagonal supporting rods 29 are bent and inserted in holesprovided in the rotatably mounted arms 26, and extend to the rearintermediate and end transverse members, the rods 29 supporting themiddle roll, being secured to the intermediate rear top transversemember 11, and the rods holding the top concave roll being secured tothe end transverse member 9. 'I'he rods`29 are not rigidly secured tothe transverse members but fit loosely and extend through openingsprovided therein, and springs 30 encircling the end portions of saidrods 29 are secured to nuts 31 on the ends of said rods and to thetransverse members, whereby the top horizontal rolls can give by risingupwardly in case an overly hardened sack is being crushed between therolls thereby preventing injury to the sack.

'Ihe lower transverse shaft 23 on which the .lower middle horizontalcylindrical roll 3 is mounted is operatively connected at one end to asuitable gear speed reducer 32 which is driven by a motor 33 of anysuitable type mounted on the framework. The other end of said shaft 23is provided with a bevel gear 34 which meshes with a second bevel gear35 mounted on a longitudinal shaft 36 which is operatively connected tothe various other rolls to drive the same and which is supported at itstwo ends and near the center by bearings 37 extending from the sidelongitudinal member 5. Said longitudinal shaft 36 is provided at itsforward end with a bevel gear 38 which intermeshes with a second bevelgear 39 mounted near the bottom of the vertical shaft 16 on which thecylindrical yoke-shaped bracket sleeve is rotatably mounted at that sideof the framework. I'he top of said shaft 16 is provided with a sprocketwheel 40 which drives a sprocket chain 41 which in turn drives anothersprocket wheel 42 mounted on the top of the vertical roll shaft 18. Thevertical roll shaft 18 on the other side of the framework is alsoprovided at its top with a sprocket wheel 43 driven by a sprocket chain44 which in turn is driven by a sprocket Wheel 45 mounted at the top ofthe vertical bracket shaft 16 on that side of the framework. In order todrive the rolls simultaneously from the main longitudinal shaft 36. atransverse shaft 46 mounted in bearings 47 extending from the bottomlongitudinal side members 5 is provided with bevel gears 48 on each endwhich intermesh with bevel gears 49 provided on the bottom of eachvertical shaft 16.

Each of the two top horizontal rolls is driven by means of sprocketchains 50 engaging sprocket wheels 51 provided at one end of the shafts25 on which they are mounted, and sprocket gears 52 mounted on the toptransverse shafts' 27. Said shafts 27 are provided with bevel gears 53at one end, said bevel gears 53 intermeshing with bevel gears 54provided on the top of vertical shafts 55 which are mounted in bearings56 secured to the side upright members 10, said shafts having bevelgears 57 provided on their bottom which intermesh with bevel gears 58mounted on the main longitudinal shaft 36.

The rear end lower horizontal concave roll 4 is driven by means of abevel gear 59 provided on the end of the shaft 23 on which said roll 4is mounted, said gear 59 intermeshing with another bevel gear 60provided on the rear end of the main longitudinal drive shaft 36.

While any suitable means may be used for de-r livering sacks to mydevice, I prefer to use an endless conveyor 61 of the pusher bar typeadapted to deliver articles between the two vertical rolls, the carryingsurface of said conveyor traveling from the end of a suitable horizontalbracket 62 extending from the forward end of the rectangular framework1, to about the middle horizontal rolls and passing just below thebottom of the vertical rolls. Said conveyor 61 comprises sprocket wheels63 mounted on a shaft 64 provided on the forward end of said bracket 61,sprocket wheels 63a mounted on a shaft 65 extending between the uprightmembers 10, and sprocket chains 66 provided with pusher bars 66atraveling around said sprocket wheelsw Preferably, the conveyor isoperatively connected to the roll driving means through an endless chain67 mounted around a sprocket wheel 68 on the shaft 65 and sprocket wheel69 on the lower middle roll transverse shaft 23.

Preferably, in order to properly guide and carry sacks from themiddlerolls to the rear ones, a bed of transverse dead conveyor rollers70 is suitably mounted and arranged in the framework between said rollsand sacks emerging from between the two end concave rolls are receivedon a suitable table 71 adapted to receive the same, and any suitablemeans such as an inclined ramp 72 may be used for removing reconditionedsacks from said table 71, said sacks being pushed down said ramp byfollowing sacks.

Obviously. as numerous changes may be made in the constructionillustrated without departing from the spirit of my invention, I do notwish to be limited to the precise construction shown and described.

What I claim is: p

1. A crusher device comprising a framework through which a sack ofmaterial is adapted t0 travel, a pair of vertical cylindrical rollsmounted in said framework placed opposite each other at the sides of theline of travel of said sack adapted to crush the sides of said sack, apair of horizontal cylindrical rolls mounted in said framework placedopposite each other above and below the line of travel of said sackadapted to crush the top and bottom portions of said sack, and a pair ofhorizontal concave rolls mounted in said framework placed opposite eachother above and below the line of travel of said sack adapted to crushthe side edge portions of said sack.

2. A machine for reconditioning sugar or like material hardened in sackswhich comprises a framework, a pair of spaced apart vertically disposedcrusher rolls rotatably mounted on said framework, a pair ofhorizontally disposed rolls rotatably mounted on said framework so as toexert crushing pressure on a sack between them, a pair of concave rollsrotatably mounted on said framework so as to exert pressure on a sack mdlaliy of their concave surfaces, and means for feeding sacks to saidrst, second and third pairs of rolls in succession whereby the crosssectional shape of the contents of the sack tends to change towards acircle.

3. A machine for reconditioning sugar or like material hardened in sackswhich comprises a framework, a pair of vertically disposed crusher rollsmounted on said framework for rotation and transverse bodily movementrelatively to each other, means for yleldably forcing said rolls towardeach other and thereby exerting crushing force against the narrow sidesof a hardened sack, a pair of concave rolls mounted on said frameworkfor rotation and transverse bodily movement relatively to each other soas to exert pressure on a sack radially of their concave surfaces, andmeans for feeding sacks of hardened material to said first and secondmentioned pairs of rolls in succession whereby the cross sectional shapeof the contents of the sack tends to change towards a circle.

4. A machine for reconditioning sugar or like material hardened in sackswhich comprises a framework, a pair of vertically disposed crusher rollsmounted on said framework for rotation and for transverse bodilymovement relatively to each other, means for yieldably forcing saidrolls toward each other and thereby exerting crushing force against thenarrow sides of a hardened sack, a pair of horizontally disposed rollsmounted on said framework for rotation and for transverse bodilymovement relatively to each other so as to exert crushing pressure on asack between them, a pair of concave rolls mounted on said framework forrotation and for transverse bodily movement relatively to each other soas to exert pressure on a sack radially of the concave surfaces of sindlast mentioned rolls, and means for feeding sacks to said first, secondand third pairs of rolls in succession whereby the cross sectional shapeof the contents of the sack tends to change towards a circle.

RAY L. HOSMER.

